Well to honest if you look and on the quest log there are many events with the state "all for this update" that means there should expect more in the future updates.. indeed only 1 month doesn't make any sense.. only if he'll do another 10gig update and we don't know about it.
About Annie event.. rushed? a bit.. After I read the plot I was thinking there would be more visits to the doctor.. 1st know each other, 2nd lick, 3rd blowjob, 4th sex maybe but still confused, 5th naughty sex, 6th bonus 3some with the doctor lol.. or start a new event after the 5th visit doctor gets horny and asks mark to come alone and maybe the 3some later on.